Embedded Linux------ffmpeg Migration encoding H264 (am335x encoding H264)

/*arm-linux-gcc-o yuv2264 yuv2264.c-i/usr/local/ffmpeg_arm/include/-l/usr/local/ffmpeg_arm/lib/-lswresample- lavformat-lavutil-lavcodec-lswscale-lx264 libsdl.a*/#include "stdio.h" #include "stdlib.h" #include "libavformat/ Avformat.h "#include" libavdevice/avdevice.h "#include" libswresample/swresample.h "#include" libavutil/opt.h "# Include "Libavutil/channel_layout.h" #include "libavutil/parseutils.h" #include "libavutil/samplefmt.h" #include " Libavutil/fifo.h "#include" libavutil/intreadwrite.h "#include" libavutil/dict.h "#include" libavutil/mathematics.h " #include "libavutil/pixdesc.h" #include "libavutil/avstring.h" #include "libavutil/imgutils.h" #include "libavutil/ Timestamp.h "#include" libavutil/bprint.h "#include" libavutil/time.h "#include" libavutil/threadmessage.h "#include" Libavfilter/avcodec.h "#include" libavcodec/avcodec.h "#if have_sys_resource_h#include <sys/time.h> #include <sys/types.h> #include <sys/resource.h> #elif have_getprocesstimes#include <windows.h> #endif # if Have_getprocessmemoryinfo#include <windows.h> #include <psapi.h> #endif # if Have_sys_ Select_h#include <sys/select.h> #endif # if Have_termios_h#include <fcntl.h> #include <sys/ioctl.h># Include <sys/time.h> #include <termios.h> #elif have_kbhit#include <conio.h> #endif # if Have_pthreads #include <pthread.h> #endif # include <time.h> #include "libavutil/avassert.h" #define Max_len * 50int        Main () {//below initializes the H264 decoding Library//avcodec_init (); Av_register_all (); Avcodec_register_all ();/* Find the video encoder */avcodec *videocodec = Avcodec_find_encoder (codec_id_h264);// Get 264 Encoder class if (!VIDEOCODEC) {printf ("Avcodec_find_decoder error\n"); return-1;} /*avcodecparsercontext *avparsercontext = Av_parser_init (codec_id_h264);//Gets the parsing frame class, mainly used for the rear frame header to find if (!avparsercontext) { printf ("Av_parser_init error\n"); return-1;}  */avcodeccontext *codec_ = Avcodec_alloc_context3 (VIDEOCODEC);//Encode Session layer if (!CODEC_) {printf ("Avcodec_alloc_context3 Error\n "); return-1;} EarlyTo initialize the parameters, the following parameters should be determined by the specific business codec_->time_base.num = 1;        Codec_->time_base.den = 25;//Frame rate codec_->gop_size = 1;        Codec_->max_b_frames = 1;        Codec_->thread_count = 1; CODEC_-&GT;PIX_FMT = Pix_fmt_yuv420p;//codec_->frame_number = 1; One video frame per package//codec_->codec_type = Avmedia_type_video;codec_->bit_rate = 1000000;codec_->width = 720;// Video width codec_->height = 576;//video High if (Avcodec_open2 (codec_, Videocodec, NULL) < 0)//Open Encoder {printf ("Avcodec_open2 error \ n "); return-1;} FILE *myh264 = fopen ("t.264", "WB"), if (myH264 = = NULL) {perror ("Cant open file\n"); return-1;}        FILE *yuvfile = fopen ("My264.yuv", "RB"), if (yuvfile = = NULL) {perror ("Cant open YUV file\n"); return-1;} int readfilelen = 1;char Readbuf[max_len];p rintf ("Readbuf address is%x\n", readbuf);//int outbuf_size=100000;unsigned C Har * outbuf= malloc (outbuf_size); int u_size=0; Avpacket avpkt;unsigned char * yuv_buf= malloc (720*576*3/2); Avframe *m_pyuvframe=malloc (sizeof (avframe)); int flAg=0;while (1) {int len = fread (yuv_buf,720*576*3/2,1,yuvfile);     if (len<=0) {printf ("read over\n");         } else {Avpicture_fill ((avpicture*) m_pyuvframe, (unsigned char *) yuv_buf,pix_fmt_yuv420p,720,576);         int got_packet_ptr = 0;         Av_init_packet (&AMP;AVPKT);         Avpkt.data=outbuf;         Avpkt.size=outbuf_size;           while (1) {u_size = Avcodec_encode_video (codec_,outbuf,outbuf_size,m_pyuvframe);                if (u_size>0 && u_size<100000) {m_pyuvframe->pts++;                Fwrite (avpkt.data,1,u_size,myh264);                flag++;   Break }}}//if (flag>20) break;} Avcodec_close (CODEC_); Av_free (CODEC_); fclose (yuvfile); fclose (myH264);}

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Embedded Linux------ffmpeg Migration encoding H264 (am335x encoding H264)